Q&A with Mark Sirangelo, leader of Sierra Nevada Space Systems

Watch a replay of the static fire test of a SpaceX Falcon 9 rocket Tuesday at Cape Canaveral’s Complex 40 launch pad. SpaceX is preparing to launch the rocket Dec. 4 on a space station resupply mission.

An automated logistics vehicle packed with nearly five tons of supplies reached the International Space Station on Monday after a laser-guided rendezvous culminating with grapple of the HTV cargo craft by the station’s robotic arm at 1028 GMT (6:28 a.m. EDT).

An electrical problem on SpaceX’s drone ship parked just off the coast of Cape Canaveral prompted SpaceX to scrub a Falcon 9 launch attempt early Friday, delaying the start of a resupply mission to the International Space Station by 24 hours.